Add depth and dimension to any wall space with a four-piece wall art set. A four-piece wall art set, or quadriptych, is designed to be hung together as a single work of art. For a cohesive, artistic look, leave approximately one to three inches of space between each print. Any more than that and you lose the artistic story, any less and it looks too crowded. These four-piece wall art sets don't just come in evenly divided sections, there are plenty of options that mix up the size of the prints. Artists Don Li-Leger's "String Theory" and Hilario Gutierrez's "Windthread I" are prime examples. Use four-piece wall art sets to bring color and life to the wall behind your sofa, offer a warm welcome in your home’s entryway, or be the showpiece of your dining room.